HEPA filters and activated carbon filters are often used together, but they do not do the same job. HEPA media mainly helps capture dust, pollen, pet dander and fine particles, while activated carbon helps reduce odors and certain household gases. This guide explains the difference between the two materials, when each one is useful, why many filters use a combined structure, and what buyers should check before choosing replacement filters.

Air purifier replacement filters are essential for maintaining indoor air cleaning performance, airflow and odor control. This guide explains the difference between HEPA filter media, activated carbon layer and pre-filter structure, how to confirm replacement filter size and fitment, when filters should be replaced, and what wholesalers should check before OEM/ODM orders.

Nanjing Blue Sky Filter Co.,LTD. established in 2009, is a professional manufacturer specialized in various air filters’ research, development, production, sales and service.
We are located in Lishui economic development zone with convenient transportation access and the goods can be loaded for export at both Nanjing Port and Shanghai Port.
Nanjing Blue Sky Filter Co.,Ltd. has obtained certificates of I S O 9 0 0 1 and I S O 1 4 0 0 1 to manage our operation in a scientific and standard way.

If you have a pet, the following situations may be common for you:

1. Allergic to pets and desperately seeking relief from pet dander.

2. Have problems with pet odors and smells.

3. Pet hair shedding all over your floors and furniture.

1. Primary filter screenThis is also the first layer of filter screen in the air purifier purification system, mainly intercepting dust, hair, dander large particles of pollutants. Air purifier is the most easily dirty layer of filter screen. On the material, the primary effect filter screen is most

In recent years, the survival of our environment is the serious pollution, most of our life time is spent in indoor, the problem such as formaldehyde, toxic particles by the attention of many people, so more and more people are concerned about air quality, care about our indoor environment to su

PRE-FILTERThe FRONT FILTER IS THE latest development is MICron mesh filter, his mesh area is smaller than the general, in addition to adsorption of small dust particles, but also effective removal of hair. Surface purification after the treatment of fluxol, the dust attached to the surface of the fi

An air purifier can disinfect. It can be part of the bacteria in the air and harmful gas adsorption, have some of the disinfection effect, can reduce the risk of infection, improve the air quality in the home, very suitable for family to have the old man and the child's family. Can the filter of

The primary filter is a product installed at the front end of the high-efficiency filter to protect the high-efficiency filter, block some large particles, and prevent the high-efficiency filter from prematurely saturated.It has various forms and can be made into the individual filter.It also can be

The cabin air filter is specially used for air purification in the car compartment. Activated carbon composite filter cloth made of high-efficiency adsorption material-activated carbon and filament non-woven fabric; compact structure, can effectively filter smoke, pollen, dust, harmful gases and var